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Part of CB-01 — Cell Structure: Prokaryotic & Eukaryotic Cells

Key Points — Fastest Revision (5 Bullets, ~100 words)

by Notetube Official•key_points summary•114 words•7 views

Cell Biology — 5 Must-Know Bullets for NEET 2026

  • Ribosomes: 70S in prokaryotes AND in mitochondria/chloroplasts (50S+30S); 80S in eukaryotic cytoplasm (60S+40S) — the single most tested NEET fact.
  • Fluid Mosaic Model: Singer and Nicolson, 1972 — phospholipid bilayer + integral/peripheral proteins + cholesterol (animals).
  • Endomembrane system: Rough ER → Golgi (cis → trans) → Lysosomes ("suicide bags") → Vacuoles; mitochondria/chloroplasts are NOT part of this system.
  • Plant vs Animal: Plant = cell wall (cellulose) + plastids + vacuole + plasmodesmata; Animal = centrioles + lysosomes; plant cytokinesis = cell plate (centrifugal), animal = cleavage furrow (centripetal).
  • Middle lamella = calcium pectate (NOT cellulose) — perennial NEET trap.

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